Pressure switch device for use with pressure source of pipeline, has switching elements that are not actuated when preset minimum pressure value is not reached

摘要

The device (1) has plunger (10) that is energized so that the portion of plunger is pulled over the maximum actuating travel of an actuating element (5) out into a moving coil. An actuator tappet (91) has a switch operating portion (15) for direct actuation of switching elements (71,72). The switch operating portion and switching elements are mutually arranged. The switching elements are not actuated when preset minimum pressure value is not reached. One of switching elements is actuated independently for excitation of moving coil on reaching the preset minimum pressure value.